Complete these tasks and you will unlock the Avatar award listed.
Knight Helmet: Get the "Knight In White Assassination" achievement by assassinating a Knight in any Spartan Ops mission.
UNSC Infinity Hoodie (male/female): Get the "Not Some Recruit Anymore" achievement by ranking your Spartan-IV up to SR-5.
Platinum Mark IV Helmet: Get the "Wake Up, John" achievement by completing the campaign on the Normal or higher difficulty.
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